Thread: REX powder data
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Old 07-28-2011, 09:41   #10
robert91922
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Rex Magnum and Hornady XTP 180gr

Here's chrono report for 180gr XTP's / Rex Magnum / CCI 300 LP / Glock 20 / IGB 4.6 barrel w. full supported chamber. Temp. was 21C ( 70F).

load (grains) average (fps)
11.0..............1272
11.2..............1281
11.4..............1285
11.6..............1290
11.8..............1291
12.0..............1306

Accuracy good (see target at 27 yrds bellow). Primers still OK, not flattened at all. Case Head Expansion at max. 0.431 but due to tight and full supported chamber of IGB barrel this could not be relevant. I think Rex Magnum/180gr combination has still some way to go so a day after loaded another batch of 12.2 to 12.6 gr.
Data for 12.2 – 12.6 loads are gonna follow within few days after next trip to the range.

Similar batch with Vihtavuori 3N38 powder was done as well, it could be seen in Vihtavuori Powders sticky thread.

And here are some of that day's photos:

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Last edited by robert91922; 07-28-2011 at 23:30..
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